402144312223 has 8 divisors (see below), whose sum is σ = 423364028400. Its totient is φ = 380930018688.

The previous prime is 402144312197. The next prime is 402144312253. The reversal of 402144312223 is 322213441204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402144312223 - 2⁹ = 402144311711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402144312191 and 402144312200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402144312253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202986 + ... + 1500487.

It is an arithmetic number, because the mean of its divisors is an integer number (52920503550).

Almost surely, 2^402144312223 is an apocalyptic number.

402144312223 is a deficient number, since it is larger than the sum of its proper divisors (21219716177).

402144312223 is a wasteful number, since it uses less digits than its factorization.

402144312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711321.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 402144312223 its reverse (322213441204), we get a palindrome (724357753427).

The spelling of 402144312223 in words is "four hundred two billion, one hundred forty-four million, three hundred twelve thousand, two hundred twenty-three".